English translation: I use my Slingbox Pro (red) all the time, in and outside my home (I installed a tv with a mini-pc in my bedroom to avoid installing a 30m long coax cable).
Since a while, my Slingbox showed some weaknesses; the most symptomatic fact was the temporary and then the permanent disappearence of the sound! It didn't work anymore from there... I bought the same Slingbox model on an auction website for a very good price. When I received it, it worked for 3 weeks and then stoppped working properly: this Slingbox couldn't connect with my home network anymore: I was desperate! I was the owner of two non-working Slingbox!
I read some disscussion boards and saw it could eventually due to a faulty power supply. I was (extremely) doubtful but bought a new power supply 220V>6V-4A on another global merchant website for approx. 14€/$17/£11. When I received it, I plugged it, reconfigured my Slingbox... and "Voilà!", it works!
Curious, I tested with my first Slingbox, the one with the sound problem: it also works!
I'm now the happy owner of two fully functionnal Slingbox... just for 14€ :-)