Bug: WMS layers do not draw if the WMS service version is 1.0.0
**This issue has been resolved in ArcGIS 9.1**
After adding a WMS service version 1.0.0 to ArcMap, none of the layers draw.
ArcMap is formatting its request incorrectly for WMS version 1.0.0. The REQUEST parameter for the map is in the wrong case.
There are no workarounds for this issue.