Change the Channels on RadioShack

It seems I'm the only one who's unimpressed with RadioShack's (RSH Quote) first-quarter results.

Shares of the electronics retailer recently were jumping $1.95, or 7%, to $29.67 after the company posted better-than-expected earnings. That adds to a big stock run in recent months as RadioShack works to turn around a series of dismal results.

Indeed, the company has slashed costs, improved margins and boosted its bottom line. But sales are still tanking, and that's not just because the retailer closed more than 500 stores. On a comparable-store basis, first-quarter sales plummeted 9.2% amid continued weakness in the company's wireless business. ...