The first steps I would do is following;
1) Download original driver to your grapic card from vendor (nvidia.com or amd.com)
2) Perform filecheck on the drive where UO is installed (properties on drive, tools, check drive)
3) Perform full fillecheck from patch screen
4) Update chipsetdrivers (if intel, from intel.com - if amd from amd.com)
5) Rename EA Games in document's folder - and only copy back macros.txt and try, - if all ok, copy back desktop file and try.