小弟我的xampp到底哪里出了有关问题啊请各位大神帮帮忙

我的xampp到底哪里出了问题啊。请各位大神帮帮忙啊
我最近才弄xampp。但是http://localhost/ 就是死活打不开。在
xampp-control 里面显示的一切正常，apache 和MySQL 都是显示的running
日志如下
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

但是在apache的日志里有如下的东西

[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 的日志是这样的

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