I noticed if you install the WINCE_GFX_SGX_01_01_00_setup.exe it resets the DVSDK_INSTALL_DIR enviroment variable to the "C:\TI\...." path. This causes the default EVM_OMAP3530 OSDesign to fail when it looks for the dvsdk files.
Reseting the DVSDK_INSTALL_DIR enviroment variable back to "C:\WINCE600\3rdParty\dvsdk_wince_01_11_00_02" or removing the enviroment variable alltogether fixes the problem. See the prelink.bat file in the DVSDK subproject for info on how this variable is processed.
DV