Have you tried default theme? Or reboot your tube? If fail also, try reset your phone (*#7370#) make sure backup all your data. 
As far as I can see the Class 2 mem.card is not compatible with our tube. I read at nokia europe discussion board. There's had some issue with Class 2. If lucky, nothing happen with it, but mostly it probably the cause of data corruption in memorycard. So, if your warranty is still valid in 3month, go to Nokia Care Center to replaced it for you, but first, give them a call to ask them is the memorycard class 4 or 6 available in their stock. 

installed garmin, photo browser, msn messenger

heyz
i've noticed tis for a while already n it's bugging me
my screen doesnt look perfectly flat type
under the light can see pretty clear
could see some "contour" on d screen
especially on d side...
i dun rmb pressing rily hard on d screen side
is tis normal? mebe caused by pressing too hard during sp installation? 

I checked mine and my brother's unit. Both got slight contour wor. Only visible when seen from sideways using the reflection. Is that what u mentioning?

hmm i get to find the GPS device already @@~ but now i dont know how to set the positioning method.. its in Garmin or the phone setting? and i cant get Malaysia map althought i've install the MFM map into my phone.. help please?

Update for the guys with C2 memory card that would like to replace them.

I manage to exchanged mine at NCC Melaka. They replaced it with a PNY 8GB (Don't know what class, but this card copies faster than a Nokia C6 that my brother has). They didn't even checked my IMEI number, just took my memory card, take a new one and stick a warranty sticker and that's it lol.

Well, she took it out and said will replace. Then I told her I want format first, she said ok. But then she said even if I don't format, she will do it before sending it back to Nokia anyways.
Okay this is interesting, your unit of 5800XM came with PNY... Guess this one need confirm with the rest.

what's the benefit if you got faster transfer speed?

Hey guys Just owned a Blue Tube today, just wanna ask about the guitar pick stylus, how do I actually hang it thru the single hole at the bottom left of the phone and sticking out thru the cover?

Ah okay thanks, I've read thru the manual book. dunno whether i missed that page or what. But it doesn't says anything about the pick stylus hehe. But oh well since I've got it fixed up already Its an awesome phone

the NCC is just trying to taichi the responsibility....