Trouble seeing the menu display of my Asus sound card

Hello all,

Sorry about the vague heading to my question... I'm not sure how to describe it and the problem may not be related to my video card but I thought I'd start here first.

I have a GeForce GTX 550Ti running driver version 301.42 with Win7 64bit.

I am having trouble viewing the control screen for my Asus sound card.

The sound card comes bundled with Xonar DX Audio Centre software which is used to configure the soundcard eg. set the EQ, output (stereo, 5.1 etc). The sound card control display measures approx 16cm x 8cm on my monitor. Clicking the 'Menu' tab located at the bottom of this display "lifts" or slides up the display to reveal a second control page underneath it.

My problem is that i can only see a 3cm x 2cm section of this second page in the top left hand corner of the display. The remainder is grey and has no information other than a few more menu tabs along the bottom. This second page has all of the controls needed to configure the soundcard. The small 3x2cm block shows only a glimpse of information ... I can make out what might be a check box and a slider but that's about it.

Does anyone else have this problem or have any ideas what could be causing it and how to fix it?

I'm stuck!!!

Thanks very much for your help.

DP