Hi Paul,

I had qiute significant problems with 6.0.09, had to change some hardware etc. Had to turn hardware acceleration off.

6.1.1 is significantly better, still need to keep hardware acceleration off on older machines. Occasional quirky behavior, no crashes.

6.1.1 is probably not as good as 5.?? (last release of 5) in terms of speed.

6.1.1 is much faster with drug interaction checking turned off.

erxing has been great.

Our hardware: Main computer i7 Win 7 Pro 64 bit, new laptop i5 Win 7 Pro 64 bit, older machines about 6 years old, XP Pro, single core processors, 2-3 gigs RAM. P2P (despite Bert's efforts to persuade me....)

Gene

Gene Nallin MD solo family practice with one PA Cumberland, Md