The fact that the Slingbox works fine on other computers indicates that the security software (firewall) on the Acer computer is blocking the connection.
In this case, we recommend you to contact the computer manufacturer in order to determine if is there any specific setting to modify in order to get the Slingbox recognized.
Let us know your results.
thanks for the input, we did try the firewall thing earlier. It turns out my audio set wasn't plugged in. Aparently without a valid destination for audio (ie headphones or speakers) the slingbox player fails to start. Once i put my headphones in it fired right up...wierd anyways i appreciate the help.