What in the theming process could have done this?

I have just put the last finishing touches to my theme that i've been working on. And the last few things that I did was as following:

1. Edited the CSS-file by adding a couple height and widths to the left block area.
2. Changing the name of the theme by renaming the map, the info file, the project name and everywhere else where its necessary in the .info file.

Thats it. Nothing else. I might point out that everything worked just fine after step 1.

But now, what happens? I cant add anything into the content area of any content type, I simply cant create any content. It doesnt give me an error or anything it just wont insert it into the database. So I first assumed I had done some weird configurations or something. I put up a clean install of drupal 6.10 and inserted the theme(looking good btw ;)) but still I cant insert anything into content types, not pages, not story nothing.

So now I renamed the theme to its original name, changing everything back as I assumed that was the problem. Wrong.

I still cant insert anything into nodes, not with my theme. Works great with other teams like garland and such.

Anyone have ANY idea at all? I'm desperate, throwing random items into the wall :P