I had to reinstall pt because my old harddrive blew up and now that I did, I start to get these strange error messages when trying to convert my handhistories into PT database:
"Error chip count not a valid number for player XXX for game YYY."
and therefore it can't convert any ringgame hand :/ (tournament & sit'n'go hands it can convert)
I bet it's some easy solution with which I can fix it, but really don't know how. If someone could help, I'd appreciate it 
This is most likely because your regional settings are not set to the proper values.
If you are using Windows XP or greater, Poker Tracker can change the settings for you at startup (you will be prompted) and then change them back when you exit the program. If it doesn't prompt you, open the Utilities > Regional Settings window and click the "Yes, always change my settings each time I run Poker Tracker" box and click the OK button. Then close and reopen Poker Tracker.
If you are using Windows ME, 98 or lower, you have to manually changed these settings BEFORE running Poker Tracker. From the Start menu, select Control Panel and then click the Regional Settings option. Language should be set to English and Country/Region should be set to United States.
This worked for me.
