CTD at FL ch

Hi,I have read a lot of topics concerning CTD with the MD-11. Most users crash when using the FMC for Directs or entering SIDs or STARs. I crashed three times in a row at performing a FL change:I pre-selected a crz-altitude of 300 in the FMC. After reaching this and being in crz-mode I checked the OPT-Alt in the FMS, saying FL 365. So I changed this on the INIT-site, pressed "prof" and the plane started climbing. Within this climb I always crashed (even when I pressed not a button, I didnt touch anything). I am using version 1.2 . my specs: 2x nvidia gtx 295, 1,7 GB; 8 GB Ram; AMD Phenom IIDoes anyone know this issue or has a solution for this?Greets Christoph