What's wrong with xampp?

What's wrong with my xampp. Please help me. I just got xampp recently. However, http: // localhost/& nbsp; cannot be opened. Everything shown in xampp-control & nbsp; is normal. apache & nbsp; and MySQL & nbsp; both display the following running logs: 1. what is wrong with my xampp. Please help me.
I just got xampp recently. However, http: // localhost/cannot be opened. In
Everything displayed in xampp-control is normal, while apache and MySQL both display running.
The log is as follows:
15:15:16 [main] Initializing Control Panel
15:15:16 [main] Windows Version: Windows XP SP3 32-bit
15:15:16 [main] XAMPP Version: 1.8.1
15:15:16 [main] Control Panel Version: 3.1.0 Beta 6 [Compiled: September 20th 2012]
15:15:16 [main] Running with Administrator rights-good!
15:15:16 [main] XAMPP Installation Directory: "f: \ xampp \"
15:15:16 [main] Checking for prerequisites
15:15:16 [main] All prerequisites found
15:15:16 [main] Initializing Modules
15:15:16 [main] Starting Check-Timer
15:15:16 [main] Control Panel Ready
15:15:24 [Apache] Attempting to start Apache app...
15:15:24 [Apache] Status change detected: running
15:15:24 [mysql] Attempting to start MySQL app...
15:15:25 [mysql] Status change detected: running
15:16:06 [Apache] Attempting to stop Apache (PID: 5564)
15:16:06 [Apache] Attempting to stop Apache (PID: 4656)
15:16:06 [Apache] Status change detected: stopped
15:16:06 [mysql] Attempting to stop MySQL (PID: 4024)
15:16:07 [mysql] Status change detected: stopped
15:17:41 [main] Deinitializing Modules
15:17:41 [main] Deinitializing Control Panel

However, there are the following items in apache logs:

[Tue Oct 30 15:15:28. 468750 2012] [core: warn] [pid 5564: tid 216] AH00098: pid file F:/xampp/apache/logs/httpd. pid overwritten -- Unclean shutdown of previous Apache run?
[Tue Oct 30 15:15:28. 843750 2012] [ssl: warn] [pid 5564: tid 216] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Tue Oct 30 15:15:30. 203125 2012] [mpm_winnt: notice] [pid 5564: tid 216] AH00455: Apache/2.4.3 (Win32) OpenSSL/1.0.1c PHP/5.4.7 configured -- resuming normal operations
[Tue Oct 30 15:15:30. 218750 2012] [mpm_winnt: notice] [pid 5564: tid 216] AH00456: Server built: Aug 18 2012 12:41:37
[Tue Oct 30 15:15:30. 218750 2012] [core: notice] [pid 5564: tid 216] AH00094: Command line: 'f: \ xampp \ apache \ bin \ httpd.exe-d f: /xampp/apache'
[Tue Oct 30 15:15:30. 296875 2012] [mpm_winnt: notice] [pid 5564: tid 216] AH00418: Parent: Created child process 4656
[Tue Oct 30 15:15:33. 093750 2012] [ssl: warn] [pid 4656: tid 1864] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Tue Oct 30 15:15:33. 281250 2012] [mpm_winnt: notice] [pid 4656: tid 1864] AH00354: Child: Starting 150 worker threads.


Mysql logs are as follows:

121030 15:15:26 [Note] Plugin 'Federated 'is disabled.
121030 15:15:26 InnoDB: The InnoDB memory heap is disabled
121030 15:15:26 InnoDB: Mutexes and rw_locks use Windows interlocked functions