Yep changed to the new version of pwsdll.dll and everything is now ok. thanks so much.

Hi thanks for reply. where should I post problems with tracker? don't have any error messages, tracker just stop at the 'compare bases' stage of loading saved games.This only happens when the new version of WITP saved games. All od save files load perfectly. thanks

Hi just to let you know I had the same problem and fixed it by adding command line switch -dd_sw. This ensures direct draw commands are handled by software.[;)]

Just tried loading old version files with new and tracker failed. Then tried with just new version saves and again tracker failed.