First one is the slow start in windows 7. I have reinstalled my OS recently and my hard drive is almost empty, so I think this an opera issue.
Second is that when I want to use google search via the address bar I sometimes get the "Website not found" page. It seems that opera doesn't recognize search queries as such, hence the page not found error. It always works on the second try though.

Lastly, some general suggestions. I would like to resize my speed dial blocks. There is no option for that, not even in the advanced section in the settings menu. I also would like to add a new custom search engine and make it default, if possible. You can do that with almost every modern browser nowadays. Then I would like to have an option to stop search and web history. That was also possible in the previous versions. Instead I have to delete the history manually, which I tend to forget sometimes and which is always quite annoying. Is there at least a short cut for that? Or maybe an extension?

Thats all so far.
Stay colorful!