cant install 1.05b

[Castellon]

What opersting system are you on?
When you unzipped the files to the EU2 folder, did you select to maintain the directory structure, and did you select to overwrite all files?

 

[Castellon]

Yup the B patch should work with all.
Always recommended to do a fresh instal before patching.

 

[Castellon]

Great!