Funny thing as after I read this thread my son came to me and told me his power button stopped working after he flashed a new rom ( UNommon Sense or something like that) . I wiped and flashed back to a prior rom but still had same issue , power button did not work, only way to kill was removing battery. Recovery would not work because he could not use the button to select a choice. I used Rom manager to flash it again but no luck. Finally just ran stock RUU from PC and unrooted and placed back to stock, problem still not fixed. Not sure what may have happened on his flash or if timing was just coincedental but after we unrooted we went in to a corporate store and paid the 35 dollar Sprint extortion fee even though these are under full warranty ( that is another story) and they gladly exchanged his phone . No questions or weird looks. By all means just take the 5 minutes and and unroot the phone prior to taking it in and just save a backup on your sd card and pull the sd card out before taking the phone in. This eliminates any questions, takes 5-10 minutes to unroot , and maybe another 10 to reroot the new/repaired phone. I did have my son switch to the Bluemike froyo clear rom which has been completely stable for us. His whole sprint swap took 30 minutes , which I would say is not bad for an in store tech review and new phone swap. Of course being in Dallas probably helps compared to a small place. Here is a link to what I believe is a nice mix of functionality and looks .
http://forum.ppcgeeks.com/cdma-htc-e...-red-pure.html
here is a link
MEGAUPLOAD - The leading online storage and file delivery service to the last stock RUU (thanks to KarlE) this is 3.70.651.1 , if you just sync phone to pc with htc sync working , then run this RUU from your pc with phone synced and you will be fine in 10 minutes with a nice new updated stock phone to take in to sprint. Handy to have . You really need not do any thing else to return the phone .If you have the revoked.forever file and a rom that you like already on your sd card , you can be rooted and flashed within minutes after getting your repaired or new phone back , Remember , always wipe twice before flashing
Cleanliness is next to Godliness.