I am having the same problem. Here is the log.
1:21:02 PM [main] Initializing Control Panel
1:21:03 PM [main] Windows Version: Windows 7 Home Premium SP1 64-bit
1:21:03 PM [main] XAMPP Version: 1.8.3
1:21:03 PM [main] Control Panel Version: 3.2.1 [ Compiled: May 7th 2013 ]
1:21:03 PM [main] You are not running with administrator rights! This will work for
1:21:03 PM [main] most application stuff but whenever you do something with services
1:21:03 PM [main] there will be a security dialogue or things will break! So think
1:21:03 PM [main] about running this application with administrator rights!
1:21:03 PM [main] XAMPP Installation Directory: "d:\xampp\"
1:21:03 PM [main] Checking for prerequisites
1:22:18 PM [main] All prerequisites found
1:22:18 PM [main] Initializing Modules
1:22:18 PM [main] Starting Check-Timer
1:22:18 PM [main] Control Panel Ready
1:22:31 PM [Apache] Attempting to start Apache app...
1:22:31 PM [Apache] Status change detected: running
1:22:34 PM [Apache] Status change detected: stopped
1:22:34 PM [Apache] Error: Apache shutdown unexpectedly.
1:22:34 PM [Apache] This may be due to a blocked port, missing dependencies,
1:22:34 PM [Apache] improper privileges, a crash, or a shutdown by another method.
1:22:34 PM [Apache] Press the Logs button to view error logs and check
1:22:34 PM [Apache] the Windows Event Viewer for more clues
1:22:34 PM [Apache] If you need more help, copy and post this
1:22:34 PM [Apache] entire log window on the forums