AbleCommerce Shopping Cart Software

My AbleCommerce cart suddenly stopped working about a month ago for no apparent reason. I haven't upgraded my server, or changed anything else. The cart had been working for a full year prior to this.

Now, when an order is placed, the status stays in "Payment Pending," even though payment is captured successfully. I have been manually changing the order status to completed in the admin interface, but I shouldn't have to do this. I need to have the payment status change automatically because I sell digital goods with instant access.

Does anybody know how to fix this problem? Here is the information about my cart:

PLATFORM: ASP.NET
VERSION: 7.0.0
BUILD: 11659

AjaxControlToolkit: 1.0.10301.0
CommerceBuilder: 7.0.10752.0
CommerceBuilder.AuthorizeNet: 7.0.9764.0
CommerceBuilder.CanadaPost: 7.0.0.0
CommerceBuilder.CCH: 7.0.0.0
CommerceBuilder.Configuration: 7.0.10752.0
CommerceBuilder.CyberSource: 7.0.9764.0
CommerceBuilder.DataClient.Api: 1.0.0.21
CommerceBuilder.DataClient.Csv: 1.0.0.0
CommerceBuilder.DHL: 7.0.8825.0
CommerceBuilder.ECB: 7.0.0.0
CommerceBuilder.FedEx: 7.0.9725.0
CommerceBuilder.FRBNY: 7.0.0.0
CommerceBuilder.GoogleCheckout: 7.0.10052.0
CommerceBuilder.InternetSecure: 7.0.9764.0
CommerceBuilder.LinkPoint: 7.0.9764.0
CommerceBuilder.Paradata: 7.0.9764.0
CommerceBuilder.PayFlowPro: 7.0.10061.0
CommerceBuilder.PayJunction: 7.0.9764.0
CommerceBuilder.PayPal: 7.0.10840.0
CommerceBuilder.Services: 7.0.10752.0
CommerceBuilder.SkipJack: 7.0.9764.0
CommerceBuilder.UPS: 7.0.10041.0
CommerceBuilder.USPS: 7.0.9728.0
CommerceBuilder.Web: 7.0.10752.0
ComponentArt.Web.UI: 2007.1.1566.3
CyberSource.Base: 2.0.0.0
CyberSource.Clients: 5.0.2.0
CyberSource.Clients.XmlSerializers: 5.0.2.0
CyberSource.WSSecurity: 2.0.0.0
CybsWSSecurityIOP: 1.0.0.0
edtFTPnet: 1.2.4.0
FredCK.FCKeditorV2: 2.5.2912.21007
ICSharpCode.SharpZipLib: 0.85.5.452
LinkPointTransaction: 1.0.1797.29766
log4net: 1.2.10.0
Microsoft.Practices.EnterpriseLibrary.Common: 2.0.0.0
Microsoft.Practices.EnterpriseLibrary.Data: 2.0.0.0
Microsoft.Practices.ObjectBuilder: 1.0.51205.0
Microsoft.Web.Preview: 1.2.61025.0
NVelocity: 7.0.8530.0
PaygatewayNET: 3.0.0.0
paypal_base: 4.2.1.0
PFProCOMLib: 1.0.0.0
PFProdotNET: 0.0.0.0
Validators: 1.0.0.0
WebChart: 1.1.1.6
wwHoverPanel: 1.85.0.0

Thank you in advance!

In order to get more information turn on debug mode for your payment gateway from AbleCommerce admin. This will make application to log request data being sent to payment provider and response data coming back from provider. You can go through that request/response information may be it provides you something helpful. Secondly what payment gateways you have configured on your website and also is this the case with orders where some specific payment provider is used to pay for those orders or its just on all orders.

Thanks Mazhar,
This is happening to the PayFlowPro gateway. Debug mode has been on and I looked at the logs and everything seems fine.
I get "RESULT=0" and "RESPMSG=Approved" among other good things.

Could it be that AbleCommerce is not waiting long enough for a response from PayFlowPro? If this is so, how can I increase this delay?

You ever get this resolved? If so what was the issue?