My checks were printing just fine in the past but the last couple of months it's off and I can't seem to get things to line up. Help.

We can fine-tune the check alignment in QuickBooks Online (QBO), Bob. 

We can start by loading some blank paper as your test prints. By this, we can align them first to avoid wasting actual checks.

Here's how: 

1. Select + New.
2. Select Print checks.
3. Select Print setup.
4. Select your check type, voucher, or standard.
5. Select View preview and print sample. Then select Print.
6. Follow the on-screen steps to finish printing your sample check.
7. Put the sample print under a blank check. See if they line up correctly.

In your case, we can follow step 3 in this article since the check doesn't align: Configure your print settings for printing checks in QuickBooks Online.

By doing this, we can fine-tune your check alignment.

In addition, I've added this article as your reference in identifying all checks sorted by number or one that lets you scan for missing or duplicate check numbers: Generate a Missing Checks report in QuickBooks Online. 

The Community is here to assist if you need additional assistance printing your checks and any QuickBooks-related concerns. Have a good day.