My problems (SkinStudio6 Free):
1. I've seen this problem at others too but I still don't know how to solve it.
It's about modifing the progressbar from one with chunks (for example WindowsXP default theme(luna)) to one without them, in a smooth style (like Vista, for example, has).
SkinStudio says that if the chunk size is set to 1 and chunk gap to 0 then the progressbar will be drawn in smooth mode without chunks. But it doesn't.
Have I omit something?
2. Currently I'm making a new theme by combining diffenret parts from others. The thing is I editing 'TitleBars and WindowFrames' when I'm not sure how, just by importing another close button (in 'Edit Per Pixel Frames'>) and modifieng it's settings manually according to its orginial theme from where it became, it dissapeared! Just like that. Then I thought to start working in 'Edit UIS2 Frames' thoughting this will solve the problem. I've paused this and wanted to test something else to add (not about 'TitleBars and WindowFrames') so I've copied the theme (when opening a new theme - options on right: COPY & EDIT) and when i've saw the copy that close button appeared as nothing bad happened (this was in the copy)

3. It happened to me that after I copied a theme, the copy didn't had the Minimize and Maximize (Restore i think too) button.
4. It happened to me about 4 times that after going to 'XP Specific Section', SkinStudio6 didn't respond or didn't worked

5. Please try this! (warning - at me this shuts down SkinStudio) Go to Edit Controls > Edit Toolbar controls > Rebar controls > Background > Image > Import file > hit "..." (Browse) then hit cancel > then hit "..." (Browse) again and wait...move your cursor

If is my mistake, I'm sorry.