I have a problem patching too and if you say reinstall this will be the second time I have had to reinstal impulse ralated products.
I'll currently patch 1.12 looking to go 1.13. sins builds a file list and then connecting..., after that there is a download error.
This is what is happening to me. I go to patch Sins and it gives me a download error after exactly 319 bytes. Same place each time. I checked the Impulse logs, and it seems like Impulse cannot find the file on the server(s).
Does anyone know how to fix this?