Registered eval with key, now Help is gone

I had been using the eval version for a few days, version 5.0. I hit the eval limit of 50 project steps and then registered the product with a name and key as instructed. After registering, the project file I had been working with got set to read-only. No other apparent problems, but it was confusing for a moment. I fixed that.

Also, my Help has disappeared. If I click on the Help buttons or menu commands, nothing happens, and I can't seem to find the Help files. Help had previously been working when I was still under the Eval license.

Should I reinstall?

Visual Build Professional 5.0
Registered to: Veramark Technologies [some info removed]
Windows Version: 5.0.2195.3.0
Install path: C:\VisBuildPro
cmax20u.dll version 2.1.0.21
SftTree_IX86_U_45.dll version 4.57
unins000.exe version 51.6.0.0
VisBuildBld.dll version 5.0.2.4
VisBuildCmd.exe version 5.0.2.3
VisBuildCore.dll version 5.0.2.3
VisBuildDotNET.dll version 5.0.2.2
VisBuildExt.dll version 5.0.2.3
VisBuildLog.dll version 5.0.2.3
VisBuildMisc.dll version 5.0.2.3
VisBuildMS.dll version 5.0.2.3
VisBuildNet.dll version 5.0.2.3
VisBuildPro.exe version 5.0.2.3
VisBuildSvr.dll version 5.0.2.3

Help has reappeared. Honestly, I didn't do anything to cause Help to disappear or reappear. I didn't uninstall or reinstall or anything like that, but I have been using VBP actively this morning.

The read-only problem was my fault, a result of saving the project file in SourceSafe. Sorry.

But the Help file thing really happened, and it remains a mystery.