Installed iTunes 9 as advised and now I can't access store

Question

Hi, just installed iTunes 9 and advised when trying to purchase a film and now I can't access the store. I can access my account etc but just get a blank screen when trying to access store! Have tried technical support but they say it's my computer's problem. Why? when I was on the iTunes store 10 minutes previous! Have limited computer knowledge but any help would be appreciated as I'm about to be flying and need some new films!

Answer 1

I have exactly the same problem. I haven't had access to the iTunes Store since upgrading to 9.0.1 nearly two months ago and none of the suggested fixes have worked for me. I use iolo as my firewall. Does anyone have any ideas?
Microsoft Windows XP Home Edition Service Pack 3 (Build 2600)
Dell Computer Corporation Dimension 4300
iTunes 9.0.1.8
QuickTime 7.6.4
FairPlay 1.5.18
Apple Application Support 1.0
iPod Updater Library 9.0d11
CD Driver 2.2.0.1
CD Driver DLL 2.1.1.1
Apple Mobile Device 2.6.0.32
Apple Mobile Device Driver 1.45.0.0
Bonjour 1.0.6.2 (118.5)
iTunes Serial Number
Current user is an administrator.
The current local date and time is 2009-10-29 07:43:00.
iTunes is not running in safe mode.
Video Display Information
NVIDIA GeForce2 MX/MX 400 (Microsoft Corporation)
** External Plug-ins Information **
No external plug-ins installed.
iPodService 9.0.1.8 is currently running.
iTunesHelper 9.0.1.8 is currently running.
Apple Mobile Device service 2.50.39.0 is currently running.
** Network Connectivity Tests **
Network Adapter Information
Adapter Name: {E6040F81-0D24-49D2-BF10-A1C14EF963E4}
Description: 3Com EtherLink XL 10/100 PCI For Complete PC Management NIC (3C905C-TX) - Packet Scheduler Miniport
IP Address: 99.141.197.14
Subnet Mask: 255.255.255.0
Default Gateway: 99.141.197.15
DHCP Enabled: Yes
DHCP Server: 192.168.0.1
Lease Obtained: Thu Oct 29 07:41:34 2009
Lease Expires: Thu Oct 29 07:51:34 2009
DNS Servers: 192.168.0.1
192.168.0.1
Active Connection: LAN Connection
Connected: Yes
Online: Yes
Using Modem: No
Using LAN: Yes
Using Proxy: No
SSL 3.0 Support: Enabled
TLS 1.0 Support: Enabled
Firewall Information
Windows Firewall is on.
iTunes is enabled in Windows Firewall.
Connection attempt to Apple web site was successful.
Connection attempt to iTunes Store was successful.
Secure connection attempt to iTunes Store was successful.
Secure connection attempt to iPhone activation server was successful.
Last successful store access was 2009-10-29 07:28:11.