odd situation with lwjgl and xp upgrade

OpenGL Development
#1

I have 7 games (pause, need to knock ash off of cigar) of which 5 are lwjgl. All are set to 800*600 size. Befroe XP upgrade from win2k, all ran beautifully. After XP upgrade, 4 of the LWJGL run the same, and the 2 done in JAVA2D run great. ( by great I mean about 60 fps, on purpose). One lone lwjgl app gets 43 fps consistantly. It is an isometric scroller of 2500 tiles. I am going to try to reduce the display size out of curiosity…but any thoughs out there? Anyone else seen this with an XP upgrade?
Thanks, and I kow the question is very loosy goosy…but… ;D

M

#2

One lone lwjgl app gets 43 fps consistantly.

And it used to be like…?

Well, 43fps is close to 85/2… so does the monitor run at 85hz at that resolution? How is it like if you disable vsync?

#3

It used to run around 60 fps as well. I will look into the hertz, though the other lwjgl apps have all the same code for the init and app size.

EDIT: change to 400 tiles and it runs right at 60 fps. Must just be my coding? LOL