i have installed ubuntu 10.04 on my dell inspiron n5110. and its new for me. wired internet is working and also bluetooth. but there is no icon or anything from which i can search wifi connections. anyone who can help

Hello. First of all you should provide some information which Display manager have you installed?
That's a key question i think.

Thanks.
I did not installed any separate display manager. I just instled ubuntu.now idont know what to do for wifi, or whicht driver should I install.

To check for a wireless connections just type in terminal

For this command. iwconfig
Lo No wireless extension
Eth0 No wireless extension
Pan0 No wireless extension

UHM.

Your laptop is certified to use with Ubuntu. Stange

Paste output of
Anyone else could help?

It lists hardwares and their properties, these also include abt networ:

05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
Subsystem: Dell Device 04b0
Flags: bus master, fast devsel, latency 0, IRQ 30
I/O ports at e000 [size=256]
Memory at f1104000 (64-bit, prefetchable) [size=4K]
Memory at f1100000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169

09:00.0 Network controller: Intel Corporation Device 008a (rev 34)
Subsystem: Intel Corporation Device 5325
Flags: bus master, fast devsel, latency 0, IRQ 10
Memory at f7e00000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>