Adding group causes HUD crash

First I wanna thank you guys for developing PT3 - I like it very much!
But...
I cannot add a new group to get table averages.
When I hit 'apply' HUD shows player stats but after a few secs this message comes up:
An error occurred during the Hud process.
Exception: Access violation
Please restart PokerTracker.
I'm using WinXP and play on Party, and it doesn't matter if I'm at a table or not.
If I add the group with no tables open, it just crashes next time it finds a table.
Only way to get PT3 back running is to delete the new averages group and restart PT3
Any suggestions?
Thx in advance
/Kim
But...
I cannot add a new group to get table averages.
When I hit 'apply' HUD shows player stats but after a few secs this message comes up:
An error occurred during the Hud process.
Exception: Access violation
Please restart PokerTracker.
I'm using WinXP and play on Party, and it doesn't matter if I'm at a table or not.
If I add the group with no tables open, it just crashes next time it finds a table.
Only way to get PT3 back running is to delete the new averages group and restart PT3
Any suggestions?
Thx in advance
/Kim