Hi all, I think Keith has to do some work before going to ski : His changes are able to let the the Demos crash on my VMS system (the version I got the day before yesterday did not have the problem. If I run i.e. gears. I can play a bit with the window size. Then it crashes with the following dump polka-jj) run gears 407 frames in 5.03 seconds = 80.9145 FPS %SYSTEM-F-HPARITH, high performance arithmetic trap, Imask=00000000, Fmask=0001B -SYSTEM-F-FLTOVF, arithmetic trap, floating overflow at PC=00000000000D0EBC, PSB %TRACE-F-NOMSG, Message number 0009804C image module routine line rel PC abs PC GEARS XFORM transform_points3_3d_no_rot_masked 13605 000000000000674C 00000000000D0EBC GEARS VBXFORM gl_transform_vb 13137 0000000000000DC8 0000000000077E48 GEARS VBXFORM gl_execute_cassette 13817 0000000000002710 0000000000079790 GEARS DLIST execute_list 16589 00000000000070A0 000000000006B3F0 GEARS DLIST gl_CallList 17213 0000000000008AC0 000000000006CE10 GEARS API1 glCallList 12167 0000000000000580 0000000000048F00 GEARS GEARS draw 8454 0000000000000C44 0000000000040C44 GEARS GLUT_EVENT processWindowWorkList 20469 00000000000018D8 0000000000045128 GEARS GLUT_EVENT glutMainLoop 20516 0000000000001A68 00000000000452B8 GEARS GEARS main 8619 0000000000001480 0000000000041480 GEARS GEARS __main 0 0000000000000070 0000000000040070 0 FFFFFFFF8325D118 FFFFFFFF8325D118 I get simmilar errors (always in subroutines called from gl_transform_vb) when I use the GL-modes of xlockmore. Bye Jouk Ceterum censeo tertium millennium post Christum natum anno MMI incepturum esse >------------------------------------------------------------------------------< Jouk Jansen [EMAIL PROTECTED] Technische Universiteit Delft tttttttttt uu uu ddddddd Nationaal centrum voor HREM tttttttttt uu uu dd dd Rotterdamseweg 137 tt uu uu dd dd 2628 AL Delft tt uu uu dd dd Nederland tt uu uu dd dd tel. 31-15-2781536 tt uuuuuuu ddddddd >------------------------------------------------------------------------------<