Mathcad 3.1 crashing?!?!

Hi all,

I've been using Mathcad Prime 2.0 and 3.0 for sometime and upgraded to 3.1 recently. Has anyone found that it seems to crash often like when copying large data (vectors) from one file to another and again when removing a trace from a plot or playing around with a 3D plot? 3.0 was smooth but 3.1 seems a bit cranky?To the best of my knowledge you can't recover a lost file in Prime unlike in M14-15.

Manilka