You should take a look at the statistics window, to see can see anything that may cause your problem.
For the Slingplayer Desktop for the Mac
Holding down [Option] selecting View | Show Statistics
If you're unable to decipher the it, maybe you can take a minute worth of video with the slingplayer and the statistics window open, so that we can help you.
Check out this thread (https://community.sling.com/message/10496#10496). There's even a video embeded (http://www.youtube.com/watch?v=Vfos4RHEGzI) with one of the posts, that shows you his streaming statistics. Bryanod was able to tell pretty quickly that the problem was memory related. Now, I'm not saying this is your problem. But, looking at the statistics can give you a better clue of what is happening.
I'm having the exact same problem, but I don't think it is the memory. Tried it on my macbook pro (mid 2010) and had the same issue. Brought my PC into the mix and still having the same issues. The PC is by far more capable than the macbook, 2X Radeon HD 4850, 12 GB ram, and a i7 920 processor. It is either an issue with the slingbox or the internet either in my apartment or at home.
I am using a SlingBox Solo, I am away from home.
I am currently on a very high bandwidth internet connection. Most recently tested:
Download Speed: 10999 kbps (1374.9 KB/sec transfer rate)
Upload Speed: 5556 kbps (694.5 KB/sec transfer rate)
My SlingPlayer for Mac is fully updated.
I am experiencing horribly low picture quality and am wondering why it maxes out at 30fps when I can only assume my internet bandwidth can handle much more.
30fps is the max for frame rate.
What do you have your encoding settings on?
1.Choose Preferences from the SlingPlayer menu.
The SlingPlayer Preferences window opens.
2.Click Encoding and see if it is on automatic, manual and if manual what is it set at?
I would play around with the manual and auto encoding settings like the poster above mentioned. Also, from the terminal, while you're streaming, you can run:
netstat -d -w1
That will show you if your network adapter is experiencing any issues. Look for positive numbers in the "errs", "colls" and "drops" columns.
I've used the desktop player on a 2009 Mac Pro, 2006 iMac and a 866MHz Powerbook G4. The auto optimization only didn't work well on the Powerbook, and that machine only has 768MB of memory and is running off a 802.11b wireless adapter. Forcing it to 320x200 helped get the stream smooth.