problems with Dual Monitors and Party Poker

[vanHelsing]

Today I tried setup my 2 Dell 2001 Monitors with a Matrox P650.
Everything works fine, but the reason for all this does not work well: Party Poker.

When I open multible tables, they are all shown in the bottom task bar, but not on the main screen. No matter how often I right or left click on the icons, nothing opens.
PokeraceHUD can see the tables - I can't.

Anyone can offer help please?