I got round this by giving having having a fixed virtual memory (just give the same value in the minimum box as in the maximum box in the instructions above - this gives poser a more recognisable chunk of memory to use ) Defrag the disk before you set up the virtual disk(!) and clear out all the temp files that have accrued. you have to have admin rights and unhide the hidden folders to do this for the following folder -OS drive:/documents and settings/ admin (or user name)/local settings/temp - look in that directory delete every thing and see if that clears things up enjoy! P PS in the animation studio I used to work in we used to have a foam hammer that we used to pound our monitors with if we were frustrated - we called it the bit cruncher :-)