Difficulty in selecting sketch entities in Creo

Can you check your computer's scaling setting? I've seen this issue occur when your scaling factor is set to something other than 100%. You can access the scaling settings by right clicking on your desktop and choosing Display Settings. Set it to 100% and try again. 

Could be a graphics issue.  In 7.0 and Creo+ (running Creo12.0) I get instant highlighting and selection.

Is it the same with the display set to wireframe?

You could also try setting config graphics to win32_gdi to disable the video card.  If this helps, you may need to use an updated driver (the latest is not always the best).

There is an option in the config.pro called :

pick_aperture_radius 

If this is set in any of your configs, it may make select more difficult. But honestly, I suspect it is either of the other response, graphics card or scaling.

What is the selection filter set to when you are having difficulty in sketch mode? It should be set to "all sketcher" but it is possible that it may not be.

I am experiencing the same problem with Creo 11.0.2.0, I am also using Creo 9.0 without this issue.

I have the same problem. It appeared instantly after switching to Creo 11. We were previously using Creo 4 without issue. I think there's a problem with Creo 11. We submitted the case to support and they told us it was a driver or hardware issue as we're not using certified hardware !

It's really annoying, I thing we now have to click approximately 30% more to do the same job. And that's a lot of time wasted.

Here's another with the exact same problem : https://community.ptc.com/t5/3D-Part-Assembly-Design/Creo-11-Selection-Issues/m-p/982605#M137268

I don't know if this will be of any help to others out there, but we were all having the same issue here and have found a solution that works for us. I was trying to install version 11.0.3.0 when I kept getting errors about the license server being incompatible. Installed the newest license server from PTC and almost all of the issues disappeared. Creo is fast and smooth again. Selection of edges and surfaces is back to normal.

We just went from Creo 7 to Creo 11.0.2.0.  We are seeing this issue too. Works fine in Creo 7. But in Creo 11, it highlights the edge, then when you left mouse click to select, it sometime doesn't pick it. Its def not repeatable. Seems like a bug in Creo 11 if you ask me.

I'm also seeing this behavior when trying to color code some parts. Sometimes have to select surface multiple times for it to finally select.

I did submit a ticket to PTC, but its hard for me to show in video, as you cant hear my mouse clicks. Anyone find a solution? Scale at 100% and tried differnt video card drivers. Even tried a new mouse when I though maybe my mouse was starting to fail. 

You received lots of valuable replies - worthy steps! If all previous failed, then make certain all updates for computer firmware and software are 100%. Reboot. Windows font format has changed somewhat. PTC should lead you to a solution to be compatible, but they won't accept fault so dig hard. I had similar entity selecting issues in Solidworks at former company years ago. I'd select slightly off the entity (1/8" by eyes on screen) and it would capture it finally. Same with font typing, it was offset from where font should be.  Your previous replies should help there too. Also, slow response on typing: I had that issue w/Solidworks years ago at a former company. Company security software (Moby...?) was impeding on that by slowing us down to a crawl.  Took 2-3 minutes to write a 15-word sentence that I typed in 20 seconds. Also crashed a lot! I'm Creo-7 going to 9 this yr, then 11 in 2yrs.  Now, I did have slightly similar issues in Creo-4 and 7 when I'm not updated thru-out all other MS and security firm/soft wares. You also should use latest iteration of Creo-11.

Same issue, recently 'upgraded' from creo 8 and tried creo 11.0.4.0. Performance is notably worse.

Sketcher selection issues;

really difficult to select sketch lines and references when in sketch mode

takes several mouse clicks to finally select what you want

Rotating model and zooming in and out is choppy and lags

Scrolling up and down the model tree is choppy and laggy

Even if you go to file -> help -> system information, the dialogue box for that is jittery, choppy, lags, display issues etc

Also a separate sheet metal thickness issue where once you have input the desired thickness you can't change it without manually changing the value in parameters

Wanted to go to Creo 11 because of some of the new features and enhancements, (real number to string, sketcher autoscale when place first dim, filter parts, assemblies and drawing symbols added when opening, performance monitor, enhancements to mulitbody modelling etc) but will have to stay with Creo 8 for now as performance is much better