I must say, I absolutely detest this new version of IE. Before you call me a fanboy of FF or whatever, I have just installed IE7 and I am using to write this post; I am not impressed.
The new UI feels very out-of-place. Its like MS deliberately designed the UI to move things out of place from where you're used to it, as if just to increase the annoyingness.
[I also very much miss the spell checker from FF, which I just noticed isn't here due to the lack of underlining of annoyingness]
The UI is also a big big waste of space. There's a big empty block of nothingness - what's the point? If it's empty, just get rid of it! The UI customization is also very inflexible; its still the age-old 'Add/Remove' button tool, which is very poor when it comes to rearranging, or completely removing buttons (I've found it literally impossible to remove the Adobe Acrobat button from the toolbar. There's just nothing there to remove it with). Cleartype is a pain in the ass too. Any time I turn it off, it magically turns itself back on - great settings system its got there eh?
The final, and largest irratation, is of course the tabs. It insists on displaying that dumb 'You've opened a new tab' screen each and every time you open a new one. I really like the streamlined tab interface, but the stupid tab page slows everything down. It should just be blank. The favourites system also looks to be quite annoying too - there's no menu-structure, just a gaint great block which has to be closed in a two-step effort.
Security is a joke too. Microsoft's attempt at increasing security just means asking for permission to do any damn thing what-so-ever. Even bloody XML pages prompt a security warning, and after its been 'allowed' the page has to refresh for it to apply!
And for some bizarre reason, the security slider under options only goes down to 'medium-low' - which still doesn't disable the forementioned security check - why not just have a 'low' setting, or maybe even just a bloody 'off' setting, or does MS just assume its consumers are just to bloody stupid to secure their own PC's. It treats you like a baby; and that's the main thing I can't stand about it. It doesn't trust you to have any freedom over it what-so-ever, and rules with an iron-fist.
Another typical security overflow Microsoft product. That condescending cake should of been sent from Mozilla to IE, because they need it!
(You can tell I'm suffering without the inline spell checker by the way!)
EDIT: I think the big block of nothingness may actually be caused by the Adobe Acrobat button - but still, I can't get rid of the bloody button, with this retarded UI customization