Makvision 25" trisync horizontal problem

[hooddoctor]

I've got one of the new makvision 25" trisyncs with the 3129 chassis. The problem is when in CGA mode, I get all resolutions shift far left and I've adjusted the hwidth, hposition and even the hold all the way and I still have about a half inch on the right. Is anyone familiar with these chassis that could point me to another adjustment on the board? I thought I could maybe adjust the horizontal width coil but there does not seem to be one. I just need it to shift about a half inch. Thanks.

[Gray_Area]

Where'd you get it?

[hooddoctor]

I got it from a Arcade supply in Atlanta which is 100 miles from me. Would cost me alot of money to ship it back. Was hoping I could adjust it without being the picture is great just the far left shift in CGA mode. Vga is fine though.